Fix links to bigquery_* documentation. (#8859)

Author: busunkim96

.repo-metadata.json

@@ -2,7 +2,7 @@
   "name": "bigquerystorage",
   "name_pretty": "Google BigQuery Storage",
   "product_documentation": "https://cloud.google.com/bigquery/docs/reference/storage/",
-  "client_documentation": "https://googleapis.dev/python/bigquery-storage/latest",
+  "client_documentation": "https://googleapis.dev/python/bigquerystorage/latest",
   "issue_tracker": "https://issuetracker.google.com/savedsearches/559654",
   "release_level": "beta",
   "language": "python",

README.rst

@@ -14,7 +14,7 @@ Python Client for BigQuery Storage API (`Beta`_)
    :target: https://python-compatibility-tools.appspot.com/one_badge_target?package=git%2Bgit%3A//github.com/googleapis/google-cloud-python.git%23subdirectory%3Dbigquery_storage
 .. _Beta: https://github.com/googleapis/google-cloud-python/blob/master/README.rst
 .. _BigQuery Storage API: https://cloud.google.com/bigquery/docs/reference/storage/
-.. _Client Library Documentation: https://googleapis.dev/python/bigquery-storage/latest
+.. _Client Library Documentation: https://googleapis.dev/python/bigquerystorage/latest
 .. _Product Documentation: https://cloud.google.com/bigquery/docs/reference/storage/
 
 Quick Start